Saint Thomas’ tracker organ was built to replace the former organ, destroyed with the church by the fire of 1975. This organ was installed in Saint Thomas’ newly reconstructed building in 1977. It was designed and built by the Canadian organ builder Gabriel Kney.

Based in London, ON, the Kney & Co. company formed by the builder and his seven employees has built over 110 tracker organs.

Saint Thomas’ Gabriel Kney Tracker Organ is completely different from the church’s former organ, a Romantic, and much larger instrument. The Kney organ was built according to the German Neo-Baroque aesthetics, and its action is entirely mechanical.